your question leaves open if you assume that these events were announced by your dreams or if those things just coincidentally happened to us.In the first case I would like to recommend you my hub about exactly this subject[http://denkmuskel.hubpages.com/hub/dreams-versus-reality]. In case of the latter I have to admit that I can not remember any exact dream that "came true" later but that I know the deja-vu-like feeling pretty well. It does not happen to me too often though. Maybe once or twice a year. And as deja-vus, as breathtaking as they might feel, are nothing magical but rather a memory distortion, I do not put too much value in them and just enjoy the feeling.

Yes, many times. Dreams can be prophetic. Ancient teachers taught that sleep leads to a 4th dimension, which happens to actually be the real world. The everyday world is a reflection, a shadow or the past of that which has already occurred in that world. There are also collections of old thoughts, fantasy and nonsense. Not to be taken too seriously.

The "I can't move or talk" nightmare, what does it mean?Have you ever had the nightmare where something or someone is holding you down and no matter how hard you try, you cannot move, and when you try to...

Have you ever dreamed about flying/floating?I have dreamed this one dream over and over again my whole life about me being able to just close my eyes, think hard, and just take a jump and start flying. I cannot go too...